First visit
CO2 3.770g
SIZE 4.5 MB
Return visit
CO2 0.499g
SIZE 610.39 KB
Emissions calculator
40%
60%
Total: per month
This is equivalent to: Driving miles in a Tesla Model S Watching hours of Netflix (in HD)
At least trees would be needed to offset the CO2 in a year
Page breakdown
Type
Requests
Size
CO2
Image
29
3.58 MB
3.001g
Script
30
788.82 KB
0.645g
Document
1
49.22 KB
0.040g
Font
4
47.46 KB
0.039g
Stylesheet
5
45.38 KB
0.037g
Other
10
8.96 KB
0.007g
Core Web Vitals
Max Potential First Input Delay
30 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Largest Contentful Paint
2.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Serve static assets with an efficient cache policy
26 resources found
A long cache lifetime can speed up repeat visits to your page.
First Contentful Paint
0.8 s
First Contentful Paint marks the time at which the first text or image is painted.
Serve images in next-gen formats
Potential savings of 2,841 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Speed Index
1.2 s
Speed Index shows how quickly the contents of a page are visibly populated.
Time to Interactive
1.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Eliminate render-blocking resources
Potential savings of 490 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Avoids an excessive DOM size
460 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
JavaScript execution time
0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Avoid enormous network payloads
Total size was 4,611 KiB
Large network payloads cost users real money and are highly correlated with long load times.
First Meaningful Paint
1.0 s
First Meaningful Paint measures when the primary content of a page is visible.
Minimizes main-thread work
0.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Reduce unused JavaScript
Potential savings of 387 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Efficiently encode images
Potential savings of 1,065 KiB
Optimized images load faster and consume less cellular data.
Properly size images
Potential savings of 2,270 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Initial server response time was short
Root document took 80 ms
Keep the server response time for the main document short because all other requests depend on it.
Reduce unused CSS
Potential savings of 36 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Switch to green hosting
One of the easiest things to do that instantly reduces your impact.
Notes
* These are assets not hosted on the same domain e.g. tracking scripts, iframe embeds, or files hosted on a CDN.
These measurements are for each new visitor, for returning visitors the footprint would be lower based on caching mechanisms.
Our brackets for the ratings: